Bless me, I'm new to this. Not at all technical, but here goes. Simply, when I get a phone call on the blackberry, which is also on the home wifi, after about a minute, regularly, the call drops followed by the wifi - not just for the phone, but the laptop also loses connectivity. My ISP is AOL and the router is a Thomson ST585V6.

It's got to the point of disabling the wifi on the phone - we shall see if this works.

I'm not trying simultaneous voice and data. Just on the phone with the phone, and on the internet with the PC. Phone rings, I start conversation, moments later, phone cuts off, wifi to PC also drops out. Call person back, repair wifi connection. Normality resumed....til the next phone call.

Orange UK?
I think your phone is trying to use UMA, and is set to use it as the preferred connection.
Therefore its using wi-fi to try and connect the call, not the mobile network, and that's why its dropping out.

Though I wasn't aware the 8520 had UMA...so perhaps I'm wrong about that...

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